These "rare badges" are still on our to-add list. Basically we need to manually feed them into the system, and we've just not gotten around to do that just yet. Time is exceedingly precious when you're so close to releasing Early Access, but we'll try our best to get them around at some future point. :D

Thanks for the answer Frog! I totally understand you amplidudes and amplidudettes have way better things to do at the moment. I would much rather ES2 come out problem free than demand for badges on the forums. I was only curious as to when to I would see them, but if you have to manually do so then please take your time!